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Two green DDR5 RDIMM sticks with black chips, no heat spreaders, 288 pins each

NEMIX RAM

NEMIX RAM DDR5 ECC RDIMM 128GB (2x64GB) 6400 CL52 1.1V 2Rx4 Registered Supermicro H13SST-GC memory upgrade

SKU CH-A31Q-AP143

A 128 GB DDR5 registered ECC kit built for the Supermicro H13SST-GC, running at 6400 MT/s with CL52 timing and 1.1 V operation

  • Capacity128GB (2 x 64GB)
  • Type288-Pin DDR5 RDIMM
  • SpeedDDR5 6400 (PC5 51200)
  • CAS LatencyCL52
  • Voltage1.10V
  • ECCYes
  • 128 GB total capacity with two 64 GB modules
  • DDR5 6400 speed rated at PC5-51200 bandwidth
  • Registered ECC design corrects single-bit errors automatically
  • 1 V operation at CL52 latency for server stability
  • 288-pin RDIMM form factor built for Supermicro H13SST-GC

128GB DDR5 ECC RDIMM kit

This 128GB kit contains two 64GB DDR5 6400 registered ECC RDIMMs built for the Supermicro H13SST-GC motherboard. It targets server administrators who need maximum registered capacity per channel with on-die error correction at 1.10V.

Installation requires matching population rules

The 288-pin RDIMM form factor fits only registered slots and must follow the board's exact population order; using the wrong slot sequence or mixing ranks prevents the system from recognising the full 128GB. No heat spreader is present, so airflow across the modules must be adequate.

Sustained load stability through registered ECC

Registered buffering offloads the memory controller so every slot runs fully populated at the rated 6400 speed and CL52 latency. ECC corrects single-bit errors continuously during long compute runs, preventing silent data corruption that would otherwise crash production workloads.

Highlights

  • 128 GB total capacity with two 64 GB modules
  • DDR5 6400 speed rated at PC5-51200 bandwidth
  • Registered ECC design corrects single-bit errors automatically
  • 1 V operation at CL52 latency for server stability
  • 288-pin RDIMM form factor built for Supermicro H13SST-GC

Specifications

BrandNEMIX RAM
SeriesNEMIX RAM Original Series Server Memory
ModelDDR5 ECC RDIMM Registered Server Memory
Part NumberMR51200-924K2
Capacity128GB (2 x 64GB)
Type288-Pin DDR5 RDIMM
SpeedDDR5 6400 (PC5 51200)
CAS LatencyCL52
Voltage1.10V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
ChipsetMajor OEM Samsung, Micron, Hynix
Heat SpreaderNo
Compatible SystemSupermicro
FeaturesDDR5 ECC RDIMM Motherboard Compatible
Package Content128GB 2X64GB DDR5 6400MHz PC5-51200 2Rx4 1.1V 288-PIN ECC RDIMM KIT

Questions about this item

How do I verify the kit is running at DDR5-6400 CL52 1.1V after installation?

Enter the BIOS or UEFI and confirm the memory frequency shows 6400 MT/s, CAS latency reads 52, and voltage is set to 1.1V; the registered ECC RDIMMs should also report 128 GB total capacity with no errors logged.

What does the MR51200-924K2 package contain and what extra parts are required?

The box includes two 64 GB 288-pin DDR5 RDIMM modules for a total of 128 GB; no additional memory components are needed, just an available DIMM slot pair on the Supermicro H13SST-GC motherboard.

Which capacity kit should I choose for the Supermicro H13SST-GC if I want the exact-match 2Rx4 registered ECC configuration?

Select the 128 GB (2 x 64 GB) DDR5-6400 CL52 1.1V 2Rx4 RDIMM kit, part number MR51200-924K2, which matches the board's registered ECC requirements and population rules.

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